Crushing-machine



- (No Model.) 2 Sheets-sneer, 2.

L. S. PFOUTS. GRUSHING MACHINE.

No. 594,964. Patented Dec. 7, 1897.

W1 ss i 4, M5

UNITED STATES PATENT OFFICE.

LEROY S. PFOUTS, OF CANTON, OHIO.

CIRVUSHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 594,964, dated December7, 1897.

Application filed April 13, 1896.

To all whom, itma/y concern/.2 I

Be it known that I, LEROY S. PFOUTS, a citizen of the United States,residing at Canton, in the county of Stark and State of Ohio, haveinvented certain new and useful Improvev ments in Crushing-Machines; andI do herechines of this class.

by declare that the following is a full, clear, and exact description ofthe same, reference being had to the annexed drawings, making a part ofthis specification, and to the figures of reference marked thereon, .inwhich Figure 1 is a side elevation'of the crusher. Fig. 2 is a verticalsection showing the arrangement andlocation of the different parts. Fig.3 is a top view. Fig. 4 is a side view of the pitman, showing atransverse sectionof the crusher-j aw lever. Fig. 5 is an edge View ofthe pitman, showing the crusher-j aw lever properly connected to thelever. Fig. 6 is an edge view of the movable crushing-jaw. Fig. 7 is aview showing the rear side of the movable crushing-jaw. Fig. 8 is anedge View of the upper toggle-bar. Fig. 9 is aside view of the uppertoggle-bar. Fig. 10 is a top view of the crusher-jaw lever.

The present invention has relation to crushing-machines and it consistsin the different parts and combination of parts hereinafter described;and particularly pointed out in the claims.

Similar figures of reference indicate-corre sponding parts in all theviews of the drawin gs.

In the accompanying drawings, 1 represents the frame of the machineproper, which is formed of sufficient weight and strength to carry outthe purposes and objects hereinafter described, said base or frame beingsecurely seated upon a suitable foundation such as is commonly used incrushing-ma- To the base or frame 1 is properly journaled thecross-shaft 2, which cross-shaft is provided with the balancewheels3-and the power-wheel 4, all of said wheels being securely attached tothe crossshaft in any convenient and well-known manner. To thecross-shaft 2 is connected the eccentric 5, to which eccentric isconnected the top or upper end of the pitman 6 by means of the cap 7.For the purpose hereinafter described the pitman 6 is formed open, so asto provide a means for properly constantially as illustrated in Figs. 2and 1.

Serial No. 587,354. (No model.)

necting the jaw-lever 8, said jaw-lever being provided with'the rib 9,which rib is properly seated into the bearing 10, said bearing beingproperly attached to the bottom or-lower between the topor upper side ofthe lever 8 and the upper portion of the pitman 6, sub- The lever 8 isfulcrumed upon the crossbolt or bar 12; which bar is properly connectedto the frame l or its equivalent. The lever8 is provided with the groove13 which groove is located a'shortdistance above the cross bolt or bar12 and a short distance in front of the Vertical center of the cross baror bolt 12, as illustrated in Fig. 2. Within the groove 13 is seated oneedge of the toggle-lever 14.,whioh toggle-lever is located between thelever 8 and the bottom or lower end of the crushing jaw or head 15,.saidtoggle-lever being held in proper position with reference to the crusherjaw or head by means of the cross-groove 16. 'The lever 8 is extended ashort distance in front or forward of its pivotal point and is providedwith an aperture 1'7, through which aperture is passed the cross-bolt18, which cross-bolt pivotally connects the bottom or lower ends of thelinks 19, which links extend upward and are pivotally connected to thetop or upper end or portion of the jaw 15 by means of the cross-bolt 20,which crossbolt also pivotally connects the arm or bar 21, said arm orbar 21 being pivotally connected to the frame orbase 1 by means of thecrossbolt 22. a I

For the purpose of holding the jaw 15 in proper position with referenceto the plate 1 1 the rod 23 is provided,' which rod is connected to therear side of the jaw 15 and-extends rearward between the side members ofthe pitman 6 and the springs 11 and is connected to the rear end of thebody 1.

For the purpose of providing a sufficient amount of elasticity to theparts the rod 23 is provided with the buffer 24, which bufier is locatedbetween the rear end of the frame 1 and suitable Washers or nuts locatedupon the end of rod 23, and for the purpose of providing properadjustment the rear end of the rod 23 should be screw-threaded for ashort distance.

The operation of the crusher proper is as follows: As the eccentric 5 iselevated by the rotation of the cross-shaft 2 the pitman 6 will be movedup, carrying with it the rear end of the lever 8, which in turndepresses the front or forward end of said lever, carrying with it thelinks 19, thereby moving the crushing-jaw 15 downward and at the sametime moving the lower end of the jaw forward by means of thetoggle-levers 14, said toggle-levers being located above the fulcrumedpoint of the lever, which causes the toggle-lever 14: to force thecrushing-jaw forward during its downward movement. The top or upper endof the crushing-jaw will be moved slightly forward, owing to the aredescribed by the forward end of the arm or bar 21, said arm or bar beingso located that it will not be brought below a horizontal position,thereby preventing any backward movement of the crusher-head during thetimeit is being forced downward, thereby forcing the crushing-jaw 15forward throughout its entire length and at the same time moving thebottom or lower portion of the crushing-jaw farther forward than its topportion. As the pitman 6 is lowered the forward portion of the lever 8will be elevated, thereby elevating the crushing-jaw and at the sametime carrying it backward or away from the fixed jaw 25, said fixed jawbein g securely connected to the frame 1. It will be understood that thejaw 15 is to be provided with the. ordinary crushing-plate 26, which isattache in any convenient and wellknown manner, inasmuch as it isimmaterial how the plate is attached except that it must be rigidly andfirmly connected to the jaw or head 15.

Having fully described my invention, what I claim as new, and desiretosecure by Letters Patent, is-

1. The combination of the machine-frame carrying a cross-shaft having aneccentric, a pitman operated by the eccentric,afulcrumed lever having aconnection with the pitman, a movable crushingjaw supported by links,said links being connected to the fulcrumed lever and to thecrushing-jaw, a toggle-lever having its bearing between the lever andcrushing-jaw and above the pivoted connection of the lever, and an armor bar loosely connected to the machine-frame and to the crushing-jaw,substantially as described.

2. The combination of the supporting-frame provided with a cross-shafthaving an eccentric, a pitman carrying a lever at its lower portion,springs located between the upper frame, a fulcrumed lever havin galinked connection with the crushing-jaw, a toggle-lever located betweenthe crushing-jaw and fulcrumed lever and means for rocking thelatter-named lever, substantially as described.

4. In an ore-crushing machine, the combination with the frame thereof,of a crushingjaw having a linked connection, between its upper portionandv the frame of the machine, a rocking lever, vertically arrangedlinks connecting said lever and crushing-jaw, and a toggle-lever betweenthe crushing-jaw and rocking lever, substantially as described.

5. In an ore-crushing machine, the combination with the supporting-frameprovided with a cross-shaft carrying an eccentric, of a slotted pitmanoperated by the eccentric, a lever pivoted near one end to thesupportingframe and having its rear end located in the slotted portionof the pitman, a crushing-jaw, a cross-shaft 22 mounted upon thesupporting-frame, arms journaled upon said shaft and having theirforward ends connected to the crushing-jaw, a connection between theshort arm of the rocking lever and the upper portion of thecrushing-jaw, and a toggle-1ever bearing against the lower portion ofthe crushing-jaw, and against the rocking lever,

substantially as described.

6. In a crushing-machine the combination of the frame provided with across-shaft having an eccentric, a slotted pitman, a lever having itsfree end located in the slotted portion of the pitman and seatedtherein, springs located above the lever, and the lever fulcrumed to oneside of the pitman, and a movable crushing jaw linked to themachineframe and lever, substantially as and for the purpose specified.

In testimony that I claim the above I have hereunto subscribed 1n ynalnein the presence of two witnesses.

LEROY S. PFOUTS.

IVitnesses:

JOSEPHINE R. BOND, F. W. BOND.

